Safety concerns for chicks grow as birds build nests with rubbish, study shows

Research shows 176 bird species have been found to build nests with human litter, including items that hurt them and their offspring.

The scientists highlighted ways birds are at risk from human material in their homes. Twine entangles birds; rubbish exposes offspring to toxins; bright colours attract predators who steal eggs; and chicks choke on material they mistake for prey.